Den wilmot



2 Sheets-Sheet 1.

(No Model.)

F. D MALTBY.

PUMP.

June 24,1884-,

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(No Model.) A 2 Sheets-Sheet. 2.

P. D. MALTBY.

PUMP.

No. 300,880. Patented June Z4, 1884.

V f f l l r f A N. PETRS. Pnum-Lithogmpher, wnshingmg D. C.

UNrrnn STATES PATENT OFFICE.

FRANK D. MALTBY, OF NEW YORK, N. Y., ASSIGNOR TO HIMSELF, DE BOR- DENVILMOT, AND WELLESLEY W. GAGE, OF SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 300,880, dated June 24,1884.

Application filed May 9, 1883. (No model.) Patented in Belgium September18, 1883, No. 62,622, and in England September 20, 1883, No. 4,498.

.To all whom it may concern:

Be it known that I, FRANK D. MALTBY, of the city, county, and State ofNew York, have invented certain Improvements in Pumps, of

which the following is a specification.

My invention is a force-pump constructed, as fully describedhereinafter, so as to elevate water from wells, Snc., by means ofoperating devices at a considerable distance above the io surface of thewater.

The invention also consists in certain details of construction fully setforth. y

In the drawings, Figure 1 is a sectional elevation showing my improvedpump applied to a well. Fig. 2 is a sectional view of the pump, showinga modification. Fig. 3 is a transverse section on the line 1 2, Fig. 2;and Fig. 4, a detached perspective view of the packing. Fig. 5 is asection on the line 1 2,

2o Fig. 2. K

A is the pump-cylinder, closed at both ends, the upperend beingprovidedwith a detachable cap, a, bolted to a liange, b, of thecylinder. Vithin the cylinder is secured a radial Q 5 abutment, B, whichis. retained in place by screw-bolts c, a packing, d, being clampedb'etween the abutment and cylinder, and effectually preventing anyleakage. A tubular piston-rod, D, extends through packing-boxes at 3othe ends of the cylinder, and carries a radial piston, E, having twochambers, X X', separated by a central partition, c, the walls of thechambers having openings f g, the lower openings, g, being closedbyexternal pendent flap-valves, h, and a ball-valve, t', within thechamber X, being tted to seats of the openings f, as in the pumppatented to Brust and Douglass, March 29, 1881. In the inner edge of theabutment B is a longitudinal channel,

4o ji', and in the upper and lower edges are like channels, to which isfitted a packing-strip, j, bent to the E shape shown in Fig. 4, therebypacking tightly the joints between the pistonrod and the abutment andbetween the latter 4 5 and the cylinder heads. This construction enablesme to use but a single strip of packing for the three joints, avoidsdifficulty in adjusting, and secures better results than when separatepieces are used. The ends and edge of the piston have also grooves t,adapted to 5o receive a E-shaped packing with like results. Should thepacking on the abutment B become worn, .the joint may be tightened byputting filler-pieces between the outer edge and the abutment, properadjustment being secured kby means of the screws c.

For pumping from deep wells, the case A is secured in a fixed positionin the well by braces W, or otherwise, and a chest, Z, which may containa check-valve, m, may be secured 6o to the lower end of the hollowpiston-rod, which may be prolonged to any convenient extent toconstitute a suction-pipe. The upper end of the piston-rod is prolongedto extend through a chamber, Y, in a hollow case or dome, F, bolted toor forming part of the cap a, and perforations n are formed vin thepiston-rod within the said case.

A pipe, G, leads from the case F to the top of the well, and a cock, H,near the lower end 7o of the pipe is provided with a handle, o, and rodp, extending to the top of the well, so that the cock may be opened todischarge the water in thepipe and prevent freezing. The upper end ofthe pipe G is supported by a standard, I, which also supports a rod, J,connected to the upper end of the piston-rod D, and provided with ahorizontal operating-lever, K. The rod J is made in sections, so that itmay bel extended or shortened according to the 8o depth ofthe well. Byoscillating the lever K, the piston is vibrated and water is taken'intothe pump-cylinder and forced therefrom, but, instead of being dischargedat the end of the piston-rod, as in the patented pump before re- 8 5ferred to, is received into the chamber Y, and passes thence to the pipeG. This construction permits the pump to be placed at any desireddistance below the surface, the horizontal position of the lever Kpermitting the ap- 9o plication of any required force to elevate thewater, a considerable force being requisite when the column of water isof any great length.

In some instances it is not desirable to prolong the piston rod belowthe cylinder, in which case a stationary tube, D', Fig. 2, may be used,said tube screwing onto a coupling,

M, which screws onto the case, receives the end of the piston-rod, andalso serves to confine the packing round the rod D.

I claim- 5 1. The combination of the pump-cylinder A, and vibratingradial piston E, and an abutment, B, extending into and securedadjustably Within the cylinder, substantially as set forth.

2. rI he abutment and piston having edge and end gro0ves,in combinationwith astrip of packing bent and fitted to said grooves, as set forth.

3. The combination of the cylinder A,adapt I5 ed to be securedvertically in or above the FRANK D. MALTBY.

V tn esses:

ARCHIBALD C. WEEKS, CrIARLEs E. FOSTER.

